3. | Verify whether customer | Yes | Issue no longer present. |
|
| reported audio issue has been |
| Return system to customer. |
|
| resolved. |
|
|
|
|
|
|
|
|
|
| No | Go to step 4. |
|
|
|
|
| |
4. Boot system from Install DVD or | Yes | Go to step 5. |
| |
| another known good bootable |
|
|
|
| No | Known good boot volume |
| |
| volume. Verify whether issue |
| ||
|
| works OK. Troubleshoot |
| |
| still occurs. |
|
| |
|
| for software issue. Isolate |
| |
|
|
|
| |
|
|
| whether issue is application |
|
|
|
| specific or whether possible |
|
|
|
| operating system conflict. |
|
|
|
| Make sure user data backed |
|
|
|
| up before removing or |
|
|
|
| reinstalling software. |
|
|
|
|
|
|
5. | Connect external speakers | Yes | Audio board, internal speaker, |
|
| to Headphone Out port |
| and external headphone port |
|
| and set System Preferences |
| functioning correctly. Return |
|
| Sound/Output to external |
| system to user. |
|
| speakers, then play a sound |
|
|
|
| file. Verify that sound quality is |
|
|
|
| No | Go to step 6 |
| |
| acceptable. |
| ||
|
|
|
|
|
6. | Disconnect and carefully | Yes | Replace damaged part(s) | M09 |
| inspect flexible cable and |
| then retest. Return to step |
|
| connectors connecting audio |
| 1 if problem continues to |
|
| board to logic board for |
| verify whether symptom has |
|
| damage such as bent pins or |
| changed. |
|
| pinched/cut wires. |
|
|
|
| No | Replace audio board then | M09 | |
|
| |||
|
|
| retest. |
|
|
|
|
|
|
Mac mini (Late 2009) Symptom Charts — Input/Output Devices 66 |
